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Table 4 Number (%) of patients prescribed different numbers of blood pressure lowering drugs at baseline and six-month follow-up in the two comparison groups (AR vs NNT)

From: Randomized trial evaluating the framing of cardiovascular risk and its impact on blood pressure control [ISRCTN87597585]

  Risk presented as Absolute Risk (AR) Risk presented as Number Needed to
  (n = 210) Treat (NNT) (n = 205)
Number of classes of drugs prescribed Baseline 6 months Baseline 6 months
of drugs prescribed     
0–1 92 (44) 72 (34) 94 (46) 77 (38)
2 67 (32) 67 (32) 66 (32) 74 (36)
3+ 51 (24) 71 (34) 45 (22) 54 (26)